PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28-036Wrench,open End

Apex Tool Group, Llc Dba Nicholson · NSN 5120-00-203-4810 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-203-4810 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-203-4810. Primary manufacturer part number: 28-036.
Features
  • Wrench,open End — FSC 5120
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
  • Head Angle: 30.0 DEGREES NOMINAL
  • Wrenching Surface Size: 1.125 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: NICKEL AND CHROMIUM OVERALL
  • Material: STEEL OVERALL
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-203-4810, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-203-4810
Primary Part Number28-036
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusCANCELLED
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Head Angle30.0 DEGREES NOMINAL
Wrenching Surface Size1.125 INCHES NOMINAL SINGLE END IN
Surface TreatmentNICKEL AND CHROMIUM OVERALL
MaterialSTEEL OVERALL
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Hardness Rating40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
Head Thickness0.250 INCHES MAXIMUM IN
Torque Capacity1000.0 INCH-POUNDS MINIMUM IN
Style DesignatorSINGLE HEAD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5940-00-156-7345 INTERCHANGEABLE
Terminal,lug
6145-00-191-84565537 INTERCHANGEABLE
Wire,electrical
Belden Wire and Cable Co Wire and Cable Office
3455-00-240-4849 INTERCHANGEABLE
Blade,band Saw,metal Cutting
5360-00-308-7557Z-6577-1 TYPE DWG P/N 28037 INTERCHANGEABLE
Spring,helical,compression
Parker-Hannifin Corporation
4330-00-392-917151436 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
2530-00-701-39767013976 INTERCHANGEABLE
Wheel,solid Rubber Tire
U S Army Tank Automotive Command Amsta-Im-Mm
6210-00-806-29001436 INTERCHANGEABLE
Guard,lamp
Mcgill Manufacturing Co, Inc
5910-00-854-68650140-0012 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Keysight Technologies Inc
5136-01-152-53201436 INTERCHANGEABLE
Tap,thread Cutting
Stanley Tools Div of Stanley Works
5930-01-232-57051436 INTERCHANGEABLE
Switch,pressure
Hydra-Electric Company Dba Hydra-Electric Co
Cross-Reference Index
Part NumberManufacturer
28-036 Apex Tool Group, Llc Dba Nicholson (USA)
28-036 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
28-036 Armstrong Bros Tool Co (USA)
GGG-W-636 TY17CL3 General Services Administration Federal Supply Service (USA)
8139484 Us Army Aviation and Missile Command (USA)
1236 Martin Sprocket and Gear Inc (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-1353 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
28-036 Satair A/s (DNK)
1236 Utica Tool Co Inc (USA)
1236 Bonney Forge Corp (USA)
1436 Wright Tool Company, Llc (USA)
Related Parts
5940-00-156-7345INTERCHANGEABLE
TERMINAL,LUG
6145-00-191-8456INTERCHANGEABLE
WIRE,ELECTRICAL
5537
3455-00-240-4849INTERCHANGEABLE
BLADE,BAND SAW,METAL CUTTING
5360-00-308-7557INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
Z-6577-1 TYPE DWG P/N 28037
4330-00-392-9171INTERCHANGEABLE
FILTER ELEMENT,FLUID
51436
2530-00-701-3976INTERCHANGEABLE
WHEEL,SOLID RUBBER TIRE
7013976
6210-00-806-2900INTERCHANGEABLE
GUARD,LAMP
1436
5910-00-854-6865INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
0140-0012
5136-01-152-5320INTERCHANGEABLE
TAP,THREAD CUTTING
1436
5930-01-232-5705INTERCHANGEABLE
SWITCH,PRESSURE
1436
4320-01-306-0277INTERCHANGEABLE
VANE,PUMP,ROTARY
034-49746-0
5120-01-398-8064INTERCHANGEABLE
SCREWDRIVER,FLAT TIP

Frequently Asked Questions

What is NSN 5120-00-203-4810?

NSN 5120-00-203-4810 is a Wrench,open End, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-203-4810?

NSN 5120-00-203-4810 has 12 cross-referenced part numbers: 28-036 (Apex Tool Group, Llc Dba Nicholson), 28-036 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 28-036 (Armstrong Bros Tool Co), GGG-W-636 TY17CL3 (General Services Administration Federal Supply Service), 8139484 (Us Army Aviation and Missile Command) and 7 more.

What NSN replaces 5120-00-203-4810?

There are 12 known substitutes for 5120-00-203-4810: 5940-00-156-7345, 6145-00-191-8456, 3455-00-240-4849 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28-036?

Key specifications for 28-036: Wrenching Surface Shape: OVAL SINGLE END INTERNAL; Head Angle: 30.0 DEGREES NOMINAL; Wrenching Surface Size: 1.125 INCHES NOMINAL SINGLE END IN; Surface Treatment: NICKEL AND CHROMIUM OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-203-4810 still in active supply?

NSN 5120-00-203-4810 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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